Note the subtle gradation of / in colour in this painting.注意这幅画中色彩的细微变化.It is hard to understand all the minute gradation of their bureaucracy.很难弄清楚他们那套官僚体制全部细微的等级分别.The gradation in the physical properties of the alkane...
10,000 deaths a year from chronic lung disease are attributable to smoking.吸烟导致每年有1万人死于慢性肺病。Many of these poets appeared in print only long after their deaths.这些诗人中有很多都是在去世很久以后作品才得以发表的。Doctors still aren't sure what...